Taking a little time for some mother-son bonding and play time today (October 16), Charlize Theron took her adorable son Jackson to the Fit For Kids gym in West Hollywood, CA.

Lovely with a shorter new hairdo, Charlize wore a pair of big shades, a blue and yellow tank, workout pants, and yellow treads. Jackson was keeper of mommy's keys as the 38-year-old held the door open for him, smiling.